package com.itheima.controller;


import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import com.itheima.utils.DateUtils;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

import static com.itheima.constant.MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL;
import static com.itheima.constant.MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS;

@RequestMapping("/report")
@RestController
public class ReportController {

    @Reference
    private MemberService memberService;
    @Reference
    private SetmealService setmealService;

    @RequestMapping("/getMemberReport")
    public Result getMemberReport() {

        Map map = new HashMap();
        List<String> months = new ArrayList<>();
        // 创建一个日期类
        Calendar calendar = Calendar.getInstance();
        // 获取当前日期的前一年
        calendar.add(Calendar.MONTH, -12);
        for (int i = 0; i < 12; i++) {
            // 获取每个月
            calendar.add(Calendar.MONTH, 1);
            months.add(new SimpleDateFormat("yyyy.MM").format(calendar.getTime()));
        }
        map.put("months", months);

        // 通过数据库查询会员人数
        List<Integer> memberCount = memberService.findMemberCountByMonth(months);
        map.put("memberCount", memberCount);

        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, map);
    }

    // 饼状图
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport() {

        try {
            // 套餐预约人数
            List<Map<String, Object>> setmealCount = setmealService.findSetmealCount();

            Map<String, Object> data = new HashMap<>();
            data.put("setmealCount", setmealCount);

            // 套餐数据
            List<String> setmealNames = new ArrayList<>();
            // 遍历套餐
            for (Map<String, Object> map : setmealCount) {
                // 获取套餐名
                String name = (String) map.get("name");
                setmealNames.add(name);
            }

            data.put("setmealNames", setmealNames);

            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

    /*    Map<String, Object> data = new HashMap<>();

        List<Map<String, Object>> setmealCount = new ArrayList<>();
        Map map = new HashMap();
        map.put("name", "检查套餐1");
        map.put("value", 200);
        setmealCount.add(map);

        Map map1 = new HashMap();
        map1.put("name", "检查套餐2");
        map1.put("value", 200);
        setmealCount.add(map1);

        data.put("setmealCount", setmealCount);

        List<String> setmealNames = new ArrayList<>();
        setmealNames.add("检查套餐1");
        setmealNames.add("检查套餐2");
        data.put("setmealNames", setmealNames);
        return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, data);}*/

    @Reference
    private ReportService reportService;

    // 运营数据统计
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData() throws Exception {

        try {
            Map<String,Object> map = reportService.getBusinessReportData();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,map);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
    }

    // 导出运营数据
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){
        try {
            Map<String,Object> map = reportService.getBusinessReportData();
            // 获取运营数据
            String reportDate = (String) map.get("reportDate");
            Integer todayNewMember = (Integer) map.get("todayNewMember");
            Integer totalMember = (Integer) map.get("totalMember");
            Integer thisWeekNewMember = (Integer) map.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) map.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) map.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) map.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) map.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) map.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) map.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) map.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) map.get("hotSetmeal");

            // 获取文件绝对路径
            String filePath = request.getSession().getServletContext().getRealPath("template")+ File.separator+"report_template.xlsx";
            // 获取Excel文件
            XSSFWorkbook xssf = new XSSFWorkbook(new FileInputStream(new File(filePath)));
            // 获取单元表
            XSSFSheet sheet = xssf.getSheetAt(0);
            // 获取行数
            XSSFRow row = sheet.getRow(2);
            // 获取列
            XSSFCell cell = row.getCell(5);
            // 导入数据
            cell.setCellValue(reportDate);

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for (Map map1 : hotSetmeal) {
                String name = (String) map1.get("name");
                Long setmeal_count = (Long) map1.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map1.get("proportion");
                row = sheet.getRow(rowNum ++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }
            // 获取文件输出流文件下载
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");
            xssf.write(out);
            out.flush();
            out.close();
            xssf.close();
            return null;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
    }
}
